macemu/BasiliskII/src/uae_cpu_2021/spcflags.h
2021-05-06 11:38:37 +09:00

176 lines
3.6 KiB
C

/*
* UAE - The Un*x Amiga Emulator
*
* MC68000 emulation
*
* Copyright 1995 Bernd Schmidt
*/
#ifndef SPCFLAGS_H
#define SPCFLAGS_H
#if 0
#include "SDL_compat.h"
#endif
enum {
SPCFLAG_STOP = 0x01,
#if 0
SPCFLAG_INTERNAL_IRQ = 0x02,
#else
SPCFLAG_INT = 0x02,
#endif
SPCFLAG_BRK = 0x04,
SPCFLAG_TRACE = 0x08,
SPCFLAG_DOTRACE = 0x10,
SPCFLAG_DOINT = 0x20,
#ifdef USE_JIT
SPCFLAG_JIT_END_COMPILE = 0x40,
SPCFLAG_JIT_EXEC_RETURN = 0x80,
#else
SPCFLAG_JIT_END_COMPILE = 0,
SPCFLAG_JIT_EXEC_RETURN = 0,
#endif
SPCFLAG_VBL = 0x100,
SPCFLAG_MFP = 0x200,
SPCFLAG_INT3 = 0x800,
SPCFLAG_INT5 = 0x1000,
SPCFLAG_SCC = 0x2000,
// SPCFLAG_MODE_CHANGE = 0x4000,
SPCFLAG_ALL = SPCFLAG_STOP
#if 0
| SPCFLAG_INTERNAL_IRQ
#else
| SPCFLAG_INT
#endif
| SPCFLAG_BRK
| SPCFLAG_TRACE
| SPCFLAG_DOTRACE
| SPCFLAG_DOINT
| SPCFLAG_JIT_END_COMPILE
| SPCFLAG_JIT_EXEC_RETURN
| SPCFLAG_INT3
| SPCFLAG_VBL
| SPCFLAG_INT5
| SPCFLAG_SCC
| SPCFLAG_MFP
,
SPCFLAG_ALL_BUT_EXEC_RETURN = SPCFLAG_ALL & ~SPCFLAG_JIT_EXEC_RETURN
};
#if 0
#define SPCFLAGS_TEST(m) \
(regs.spcflags & (m))
#else
#define SPCFLAGS_TEST(m) \
((regs.spcflags & (m)) != 0)
#endif
/* Macro only used in m68k_reset() */
#define SPCFLAGS_INIT(m) do { \
regs.spcflags = (m); \
} while (0)
#include "main.h"
extern B2_mutex *spcflags_lock;
#define SPCFLAGS_SET(m) do { \
B2_lock_mutex(spcflags_lock); \
regs.spcflags |= (m); \
B2_unlock_mutex(spcflags_lock); \
} while (0)
#define SPCFLAGS_CLEAR(m) do { \
B2_lock_mutex(spcflags_lock); \
regs.spcflags &= ~(m); \
B2_unlock_mutex(spcflags_lock); \
} while (0)
#define SleepAndWait() usleep(1000);
#if 0
#ifndef ENABLE_EXCLUSIVE_SPCFLAGS
#define SPCFLAGS_SET(m) do { \
regs.spcflags |= (m); \
} while (0)
#define SPCFLAGS_CLEAR(m) do { \
regs.spcflags &= ~(m); \
} while (0)
#if 0
#define SleepAndWait() usleep(1000)
#endif
#elif defined(X86_ASSEMBLY)
// #elif (defined(CPU_i386) || defined(CPU_x86_64)) && defined(X86_ASSEMBLY) && !defined(ENABLE_REALSTOP)
// #define HAVE_HARDWARE_LOCKS 1
#define HAVE_HARDWARE_LOCKS
#define SPCFLAGS_SET(m) do { \
__asm__ __volatile__("lock\n\torl %1,%0" : "=m" (regs.spcflags) : "i" ((m))); \
} while (0)
#define SPCFLAGS_CLEAR(m) do { \
__asm__ __volatile__("lock\n\tandl %1,%0" : "=m" (regs.spcflags) : "i" (~(m))); \
} while (0)
// #define SleepAndWait() usleep(1000)
// #elif !defined(ENABLE_REALSTOP)
// #undef HAVE_HARDWARE_LOCKS
// extern SDL_mutex *spcflags_lock;
// #define SPCFLAGS_SET(m) do { \
// SDL_LockMutex(spcflags_lock); \
// regs.spcflags |= (m); \
// SDL_UnlockMutex(spcflags_lock); \
// } while (0)
// #define SPCFLAGS_CLEAR(m) do { \
// SDL_LockMutex(spcflags_lock); \
// regs.spcflags &= ~(m); \
// SDL_UnlockMutex(spcflags_lock); \
// } while (0)
// #define SleepAndWait() usleep(1000)
#else
/// Full STOP instruction implementation (default configuration)
#undef HAVE_HARDWARE_LOCKS
#if 0
extern SDL_mutex *spcflags_lock;
extern SDL_cond *stop_condition;
#define SPCFLAGS_SET(m) do { \
SDL_LockMutex(spcflags_lock); \
regs.spcflags |= (m); \
if (regs.spcflags & SPCFLAG_STOP) \
SDL_CondSignal(stop_condition); \
SDL_UnlockMutex(spcflags_lock); \
} while (0)
#define SPCFLAGS_CLEAR(m) do { \
SDL_LockMutex(spcflags_lock); \
regs.spcflags &= ~(m); \
SDL_UnlockMutex(spcflags_lock); \
} while (0)
#define SleepAndWait() do { \
SDL_LockMutex(spcflags_lock); \
SDL_CondWait(stop_condition, spcflags_lock); \
SDL_UnlockMutex(spcflags_lock); \
} while (0)
#endif
#endif
#endif
#endif /* SPCFLAGS_H */